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- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f type ResearchObject assertion.
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- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f type Dataset assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f type ProcessResearchObject assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f type ProcessResearchObject assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f description "This study is made possible by the use of the Pangeo platform (Pangeo notebook), which is an open-source community for Big Data geosciences. We investigate regional trends in aerosol optical depth (AOD) from both satellite (MODIS) and ground-based (AERONET stations) measurements over land over the past 20 years. A good agreement is found between the two datasets when the spatial coverage of the stations is homogeneous. AOD increases significantly over northern North-America, India, Siberia and southern South America, while it decreases over Europe, Amazonia and southern North-America. In order to estimate the contribution of trends in biomass burning emissions to regional AOD trends, we use the burnt area of the monthly satellite product GFED4 as a proxy to calculate regional trends in biomass burning emissions for the period 2000-2015. Biomass burning emissions increase significantly over northern North America and East Asia, while they decrease over Europe, southern South America and northern Africa. We calculate the correlation between regional area burned and regional AOD to estimate regions where a significant trend in area burned can lead to a significant trend in AOD. We find that the increasing biomass burning emissions in northern North-America is likely to be the cause of the increase in AOD in this region. We also find that the significant increase in biomass burning emissions over East Asia cannot explain the negative observed trend in AOD. The reduction in anthropogenic aerosol particle emissions is probably the main driver of the AOD trend in this region. Finally, we construct a multivariate linear model to retrieve the global absolute change in AOD, using only the absolute change in regional burned area for the period 2000-2015. We show that the regional burned area is a good parameter for estimating the trend of AOD in most regions, since the covariation between biomass burning and AOD is strong due to their direct link and dependence to similar teleconnections." assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f contentSize "3593453" assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f dateCreated "2022-01-13 14:53:25.137366+00:00" assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f creation_mode "MANUAL" assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f cite-as "Khadir, Théodore . "Global and regional trends in AOD and their link to biomass burning emissions." ROHub. Jan 13 ,2022. https://w3id.org/ro-id/74cd76d8-24f6-48a8-9fd6-db3ddab4e22f." assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f about 3952 assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f about 3949 assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f about 6384 assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f about c_a935cf3f assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f name "Global and regional trends in AOD and their link to biomass burning emissions" assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f contentUrl "https://api.rohub.org/api/ros/74cd76d8-24f6-48a8-9fd6-db3ddab4e22f/crate/download/" assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f creator mailto:theodore.khadir@aces.su.se assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f dateModified "2025-03-05 00:59:13.833840+00:00" assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f datePublished "2022-01-13 14:53:25.137366+00:00" assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f encodingFormat "application/ld+json" assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f hasPart 2946d148-57b2-4898-8ba2-fa5d490ea001 assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f identifier "https://w3id.org/ro-id/74cd76d8-24f6-48a8-9fd6-db3ddab4e22f" assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f license no-permission assertion.
- 74cd76d8-24f6-48a8-9fd6-db3ddab4e22f author mailto:theodore.khadir@aces.su.se assertion.